Electric lock.



Patented Mar.- l8, I902.

R. HERMAN.

ELECTRIC LOCK.

(Application filed Sept. 28, 1901.)

(No Model.)

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UiTEn STATES PATENT OFFICE.

REINHOLD HERMAN, OF GRAFTON, PENNSYLVANIA.

ELECTRIC LOCK.

SPECIFICATION forming part of Letters Patent N 0. 695,724, dated March 18, 1902. Application filed September 28, 15101- Serial No. 76,856. (No model.)

To (tZZ whom it may concern:

Beit known that I, REINHOLD HERMAN, a citizen of the United States of America, residing at Grafton, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Electric Locks, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in electric locks, and has for its object the provision of novel means to look a sector, wheel, rod, or other movable part to an electromagnet.

This invention is adapted to be used in con nection with any mechanism which has a movable member that it is desired to lock and hold at certain positions, and it comprises, briefly stated, an adjustable frame which is provided with an extending arm. The frame and the arm are removably secured to the support for the lock, and suitably mounted in the frame is a pair of electromagnets,which are alined by a plate having openings to receive the cores of the magnets, and thus aline the magnets. This plate also receives the blow of the armature and prevents battering of the cores. A pair of toggle-levers are arranged in the frame substantially on a horizontal line, one of which is pivoted to the frame, and pivoted to these toggle-levers and to the extending arm of the frame is a pair of substantially vertical toggle-levers that carry the armature of the magnets. A swinging locking-lever is pivoted to the arm of the frame and to the horizontal toggle-levers and has a projection or heel to engage with the movable part or member to be locked.

The invention consists in the novel combination and arrangement of parts to be hereinafter more fully described, and specifically pointed out in the claims.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification,and wherein like numerals of reference indicate correspondin g parts throughout the several views, in which- Figure l is a side elevation of my improved electric lock, showing its application to a vertically-movable rod. Fig. 2 is an end View of the lock. Fig. 3 is a detail view of a sector capable of being locked in a manner similar 7 to the locking-rod shown in Fig. 1 of the drawings. Fig. 4 is a detail plan view of the look-plate for the magnets detached therefrom.

In the drawings the reference-numeral 1 indicates a suitable base, and 2 represents a frame, said frame carrying suitable supports 3. In said supports are formed slots 4:, which are adapted to receive screws or other suitable fastening means 5 engaging the base 1.

The referencenumeral 6 represents a pair of electromagnets which are connected to a source of electrical supply.

The reference-numerals 7 and 8 represent a pair of vertically-extending toggle-levers which are pivotally connected together, as shown at J, the upper toggle-lever 7 carrying on its inner face an armature 10, said lever being pivotally secured, as shown at 11, to the arm 12 of the frame 2.

The reference-numerals 14 and 15 represent a pair of horizontal toggle-levers which are pivotally connected together at 16, forming a connection with the lower end of the toggle-lever S. The toggle-lever 1 L is pivotally connected at 1.7 to the frame 2, and the forwardly-extending end of the toggle-lever 15 is pivotally connected at 18 to the lower portion of the swinging locking-arm 19, the upper end of which is pivotally secured at 20 to the extending end of the arm 12 of the frame. The lower end of the swinginglockingarm carries a heel 21, formed integral therewith,which heel engages in recesses 22,formed in the part to be locked, which in Fig. 1 consists of a vertically-movable rod 23.

The referencenumeral 24 represents a sector, which is likewise provided with notches 22. Said sector may be used in lieu of the rod 23 or a wheel may be employed instead of a sector or locking-rod, as will be readily understood.

The magnets are connected together by a lock-plate 6, provided with lugs or ears 7 to receive fastening-screws 8. This plateis provided with apertures 9 to receive the cores (not shown) of the magnets, and when the latter are energized the blow of the armature 10 will be delivered on the plate 6, preventing the locking-lever'inwardly, as shown in dotted lines of Fig. 1 of the drawings, and the toggle-levers will also assume the position as indicated in dotted lines of Fig. 1 of the drawings. As the rod travels downwardly and the circuit of the electromagnets is closed, energizing the magnets, the magnetic attraction of the armature will again operate the levers, as shown in full lines of Fig. l of the drawings, and will simultaneously throw the heel of the swinging locking-lever into a looking engagement with the rod, sector, or wheel, as the case may be, therebylocking the device.

The rod, sector, or wheel may be operated by mechanical means or by gravity, as may be found advantageous in different constructions or appliances to which the said lock may be employed.

The many advantages obtained by the use of my improved locking device will be readily apparent from the foregoing description taken in connection with the accompanying drawings.

It will be noted that various changes may be made in the details of construction with out departing from the general spirit of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In anelectric lock, the combination with an adjustable frame having an extending arm, of an electromagnet mounted in said frame, a pair of vertical toggle-levers pivoted together and one lever pivoted to the arm of the frame, a pair of horizontal toggle-levers pivoted together and pivoted to the vertical levers, a swinging locking-arm pivoted to one of the horizontal toggle-levers and to the arm of the frame, and having a heel for engagement with the part to be locked.

2. The combination with a movable member adapted for locking, of an electric lock comprising an adj ustably-mounted frame, an electromagnet carried thereby, two pair of toggle-levers pivoted in said frame with the armature of the magnet carried by. one pair of the levers, and a swinging locking-arm pivoted to the frame and to one of the toggle levers,'the said locking-arm adapted when the magnet is energized, to engage with the member to be locked.

3. The combination with a movable member adapted to be locked, of an electric lock comprising in connection with a suitablymounted frame, electromagnets mounted in the frame, toggle-levers pivoted together and to the frame and carrying the armature of-the magnets, a locking-plate secured to the ends of the magnets and having apertures to receive the cores of the magnets, said lockingplate adapted to receive the blow of the armature when the magnets are energized, and a swinging locking-arm pivoted to the frame and one of the toggle-levers, the said lockingarm adapted, when the electromagnets are energized, to engage with the member to be locked.

4. The combination with a movable member adapted to be locked, of a frame adjustably mounted on a suitable support, a pair of electromagnets mounted in said frame, toggle-levers pivoted to the frame and carrying the armature of the magnets, toggle-levers pivoted to the frame and to the first-mentioned toggle-levers, a locking-plate secured to the end of the magnets and having apertures to receive the cores of the magnets, and a swinging locking-arm pivoted to one of the toggle-levers and to the frame, said lockingarm adapted when the magnets are energized, to engage the member to be locked, substantially as described.

5. In combination with a movable member adapted to be looked, a frame adjustably mounted on a stationary support and provided with an extending arm, an electromagnet carried by said frame, a pair of vertical toggle-levers arranged in the frame with the armature of the magnet carried thereby, horizontal toggle-levers pivoted to the vertical toggle-levers and to the frame, and a swinging locking-arm pivoted to the arm of the frame and to one of the horizontal toggle-levers for engagement with the member to be looked upon the energizing of the magnet, substantially as described.

6. The combination with a movable member adapted to be locked, of aframe, an electromagnet mounted in said frame, vertical toggle-levers pivoted in the frame and carrying the armature of the magnet, a swinging locking-arm pivoted at one end to the frame and at its other end to one of the toggle-1evers, and toggle-levers pivotally connected to the swinging locking-arm, to the vertical toggle-levers, and to the frame, said locking-arm adapted when the magnet is energized to engage the member to be locked.

7. The combination with a movable member having notches and adapted to be locked, of a pair of suitably-mounted electromagnets, a pair of pivoted vertically-arranged togglelevers carrying the armature of said magnets, a pair of second toggle-levers pivoted to the frame and to the vertical toggle-levers, and a swinging locking-arm pivoted at one end to the support for the magnets and at its other end to one of the second toggle-levers, said locking-arm having a heel adapted when the magnets are energized t0 engagein one of the I ture when the magnets are energized, subnotches in the movable member to rock the stantia-lly as described. 10 latter. In testimony whereof I affix my signature 8. In'eleetric locks employing eleetromagin the presence of two witnesses. nets, 2t locking-plate secured to the ends of REINHOLD HERMAN. the magnets and having openings to receive Witnesses:

the cores thereof and aline the magnets, said JOHN NOLAND, locking-plate receiving the blow of the arma- H. O. EVERT. 

